Date of publication: 2017-08-27 14:16
Differentiation is a process of development by which cells that are not specialized convert into cells of specialization with some distinguishing structural and functional characteristics.
Step 9 - Two pyruvate molecules are formed by removing two phosphate groups from each molecule. These phosphate groups are given to ADP molecules and form ATP.
The lymphatic system is a another significant transport system of the body. It is responsible for moving extra tissue fluid back to the vein system and ensuring that the fat gets transported from the gut back to the bloodstream. This system is also responsible for defending the body from diseases, . it plays the role of the immune system.
Early organisms in the history of life on Earth probably used glycolysis as their main form of energy production, and it has been handed down to all of the descendants of those early life forms. In the early days of life on Earth, the atmosphere did not have a lot of oxygen, so it makes sense that cellular metabolism did not require oxygen.
6. Set point: The set point is a preset level that is required for the body to be in its normal condition. For instance, there is set point for the body heat and sugar levels.
Second, mitochondrial DNA is similar to DNA of some bacteria (the alpha proteobacteria, in case you were wondering). Coincidence? Unlikely. The best explanation is that mitochondria and protobacteria share a common ancestor. Similarly, chloroplasts and cyanobacteria share a common ancestor.
Oxygen is important for cell respiration as at the end of the electron transport chain, the electrons are donated to oxygen. This occurs in the matrix at the surface of the inner membrane. At the same time oxygen binds with hydrogen ions and forms water.
If there is no oxygen then electrons can no longer pass through the electron transport chain and NADH + H + can no longer be reconverted into NAD +. Eventually NAD + in the mitochondrion runs out and therefore the link reaction and Krebs cycle no longer take place.
Anatomy is the scientific study of plant and animal structures, both internal and external, whereas Physiology is the study of functions of the various body parts. By studying these two subjects together, it allows a student of Physical Education to have a better and more clear understanding of the human body system.
This is the mechanism by which a body achieves an almost stable internal environment so that the functions carried out by the cell are done at maximum efficiency.
All living bodies have the characteristic of adaptation to adjust themselves to their environment. For instance, plants can be found in the desert that have thick succulent leaves, and that enables them with the capability to hoard up and maintain its water content. And these plants evolve over a certain time period according to their environment. This characteristic is a fundamental of evolution.
The cell is the smallest basic unit that can be found in every living organism. All organisms are made up of an assemblage of one or more cells. There organisms can be categorised into two types: single cell and multi-cellular organisms. Single cellular organisms are also known as unicellular organisms as they are made up of a single cell. And multi-cellular organisms are made up of several cells. And in such type of organisms, each cell have a specific function to perform.
By gathering just a few observations of the structure and functioning of the human body, one can easily make out some quick observations that reveal the following characteristics: Our bodies are always respiring repetitively, that is, we breathe in O7 from the atmosphere and breather out CO7 then we consume certain substances known as food which are akin to those that constitute our body. And through the process of Metabolism which includes Anabolism and Catabolism, the body generates its energy for self-sustenance.
The contents of the chest and abdomen are incessantly moving along with various processes like the beating of the heart, inspiration and expiration in the lungs and peristalsis of the bowel. These structures can move without difficulty as they are surrounded by special, smooth layers of tissue known as pericardium, pleura and peritoneum. These small cavities of tissue, or sacs to give them their medical name, are rather like a very soft balloon containing a little fluid. Similar "sacs" occur in bone joints, around bone tendons passing over joints and at the point of friction. These sacs are known as synovial sacs.